Waste Water Engineering pH value of sludge during alkaline regression stage, is More than 6 Less than 7 More than 7 Less than 6 More than 6 Less than 7 More than 7 Less than 6 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 8 to 10 mm 2 to 3 mm 5 to 8 mm 3 to 5 mm 8 to 10 mm 2 to 3 mm 5 to 8 mm 3 to 5 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal value of over flow rates for plain primary sedimentation tanks, ranges between 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is Cast iron sewers Stone ware sewers Glazed bricks sewers Cement concrete sewers Cast iron sewers Stone ware sewers Glazed bricks sewers Cement concrete sewers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit chambers of sewage treatment plants, are generally cleaned after 12 days 2 days 7 days 14 days 12 days 2 days 7 days 14 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bottom openings 15 cm × 15 cm in the standing baffle wall are provided 30 cm c/c 50 cm c/c 22.5 cm c/c 15 cm c/c 30 cm c/c 50 cm c/c 22.5 cm c/c 15 cm c/c ANSWER DOWNLOAD EXAMIANS APP
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